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Pygmy marmoset

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The pygmy marmoset is the smallest true monkey in the world.

Callithrix pygmaea
Callithrix pygmaea

These tiny primates live in the rainforests of South America. They are mostly found in the western Amazon Basin. This area includes parts of Brazil, Colombia, Ecuador, Peru, and Bolivia. They like to live in evergreen forests near rivers.

Pygmy marmoset (Cebuella pygmaea) on branch
Pygmy marmoset (Cebuella pygmaea) on branch

They usually stay in the understory of the forest. They rarely go to the very top of the tree canopy.

These monkeys have a very special way of eating. They are gummivores, which means they specialize in eating tree gum. To get their food, they use sharp teeth to gouge holes in tree bark. This action makes the sap flow out of the tree. They then lick the sap up with their tongues. They also eat insects like butterflies that visit the sap holes. They might also eat fruit or nectar to help them grow.

Pygmy marmoset (Cebuella pygmaea) climbing tree
Pygmy marmoset (Cebuella pygmaea) climbing tree

They use claw-like nails called tegulae to cling to tree trunks while they feed.

Most pygmy marmosets live in small family groups. About 83% of them live in stable troops. These groups usually have six members, but can range from two to nine. A group often has one dominant male and one breeding female. The rest of the group helps care for the babies. This is called cooperative care. Fathers often carry the infants on their backs to help the mother.

Pigmejka 1
Pigmejka 1

This teamwork makes it easier to find food and watch for danger.

To stay together, these monkeys use a complex system of signals. They use smells, sights, and sounds to talk. They have three main types of calls for different distances. A short trill is used when the group is close together. A J-call is used for medium distances. They use a long call to talk when the group is spread out.

These sounds help the family stay connected in the thick, humid forest.

Scientists have studied these monkeys to learn about their history. There was a debate about which genus, or group, they belong to. Some thought they belonged in the genus Callithrix. However, other research helped keep them in their own genus called Cebuella. They are very different from typical primates because of their tiny size. They have had a very fast rate of body-mass reduction over time. Today, they face hard jobs like habitat loss and the pet trade.

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🖼️ Images & Media (6)
File:Callithrix pygmaea.jpg
Callithrix pygmaea.jpg
File:Cebuella skull frontal view.jpg
Cebuella skull frontal view.jpg
File:Pygmy marmoset (Cebuella pygmaea) on branch.jpg
Pygmy marmoset (Cebuella pygmaea) on branch.jpg
Zwergseidenäffchen Cebuella pygmaea.ogg
File:Pigmejka 1.jpg
Pigmejka 1.jpg
File:Pygmy marmoset (Cebuella pygmaea) climbing tree.jpg
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